Stimulus generalization of behavioral history: Interspecies generality and persistence of generalization gradients
Stimulus generalization of behavioral history: Interspecies generality and persistence of generalization gradients
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行为历史的刺激泛化：种间普遍性和泛化梯度的持续性
DOI：
10.1002/jeab.702
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发表时间：
2021
影响因子：
2.7
通讯作者：
Lattal Kennon A.
中科院分区：
文献类型：
--
作者：
Okouchi Hiroto;Nakamura Satoshi;Watanabe Sota;Lattal Kennon A.
四只鸽子在存在50像素（约15 mm）正方形或80像素（约24 mm）正方形的情况下暴露于串联可变间隔（VI）固定比率（FR）计划，并在存在第二个80像素或50像素正方形的情况下暴露于串联VI低速率差异强化（DRL）计划。调整VI和FR时间表的值，以使两个串联时间表中的强化率相等。在此之后，在固定间隔（FI）时间表或消退下进行平方大小连续泛化测试。在第一次测试中，响应频率是所有鸽子的测试刺激与训练刺激相似性的分级函数。这些系统的泛化梯度下FI时间表比灭绝持续时间更长。
Four pigeons were exposed to a tandem variable‐interval (VI) fixed‐ratio (FR) schedule in the presence of a 50‐pixel (about 15 mm) square or an 80‐pixel (about 24 mm) square and to a tandem VI differential‐reinforcement‐of‐low‐rate (DRL) schedule when a second 80‐pixel or 50‐pixel square was present. The values of the VI and FR schedules were adjusted to equate reinforcement rates in the two tandem schedules. Following this, a square‐size continuum generalization test was administered under a fixed‐interval (FI) schedule or extinction. In the first testing session, response frequency was a graded function of the similarity of the test stimuli to the training stimuli for all pigeons. These systematic generalization gradients persisted longer under the FI schedule than under extinction.